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Time-Dependent Flexibility Potential of Heat Pump Systems for Smart Energy System Operation

Steinle, Sina; Zimmerlin, Martin; Mueller, Felicitas; Held, Lukas; Suriyah, Michael R.; Leibfried, Thomas

Abstract:
The integration of multiple energy sectors, such as electricity, heating, and mobility, into an overall smart energy system is a key part of the journey towards a fossil-free energy system. Exploiting the operational flexibility of these sectors will lead to the efficient operation of the integrated smart energy system. The use of heat pumps for the heating supply based on renewable energy resources is reasonable in many cases. Combining heat pumps with thermal storages, these systems can offer flexibility to an energy system based on fluctuating power generation. Flexibility can be defined as the capability to adapt an initial schedule in order to support the energy system in terms of the provision of power reserve. In this paper, an approach to determine the time-dependent flexibility potential of a heat pump system is presented. The optimization-based approach considers all the constraints resulting from the system topology, including the required heating demand of the connected building. As a result, constraints for the integration of the available flexibility in a modified Optimal Power Flow (OPF) calculation are given. These lead to the ensured feasibility of the flexibility provision without considering the system boundaries of the heat pump site within the OPF.

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Verlagsausgabe §
DOI: 10.5445/IR/1000118106
Veröffentlicht am 07.04.2020
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Elektroenergiesysteme und Hochspannungstechnik (IEH)
Publikationstyp Zeitschriftenaufsatz
Publikationsjahr 2020
Sprache Englisch
Identifikator ISSN: 1996-1073
KITopen-ID: 1000118106
Erschienen in Energies
Band 13
Heft 4
Seiten Article: 903
Vorab online veröffentlicht am 18.02.2020
Schlagwörter heat pump operation; time-dependent flexibility; sector integration; smart energy systems
Nachgewiesen in Web of Science
Scopus
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